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RSI Expert

Overview

The RSI Expert strategy trades using the Relative Strength Index (RSI). It waits for the RSI value to cross predefined overbought or oversold levels and enters positions in the direction of the crossing.

Logic

  • Calculate RSI for each candle.
  • When RSI crosses above the oversold level, a long position is opened.
  • When RSI crosses below the overbought level, a short position is opened.
  • Before entering a new position the opposite one is closed.
  • Optional protections for take‑profit, stop‑loss and trailing stop can be enabled.

The strategy processes only finished candles and uses StockSharp's high‑level API with indicator binding.

Parameters

Name Description Default
RsiPeriod RSI calculation period. 14
LevelUp Overbought level to trigger shorts. 70
LevelDown Oversold level to trigger longs. 30
TakeProfitPercent Take profit percentage. 0 disables. 0
StopLossPercent Stop loss percentage. 0 disables. 0
TrailingStopPercent Trailing stop percentage. 0 disables. 0
CandleType Candle timeframe used for calculations. 1 minute

Notes

The trailing stop uses the built‑in StartProtection mechanism. When TrailingStopPercent is greater than zero it replaces the regular stop loss and automatically follows the price.

using System;
using System.Collections.Generic;

using Ecng.Common;

using StockSharp.Algo.Indicators;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;

namespace StockSharp.Samples.Strategies;

/// <summary>
/// RSI based strategy with overbought and oversold level cross signals.
/// Opens long when RSI crosses above oversold level, short when crosses below overbought level.
/// </summary>
public class RsiExpertStrategy : Strategy
{
	private readonly StrategyParam<int> _rsiPeriod;
	private readonly StrategyParam<decimal> _levelUp;
	private readonly StrategyParam<decimal> _levelDown;
	private readonly StrategyParam<decimal> _takeProfitPercent;
	private readonly StrategyParam<decimal> _stopLossPercent;
	private readonly StrategyParam<DataType> _candleType;

	private decimal _prevRsi;

	public int RsiPeriod { get => _rsiPeriod.Value; set => _rsiPeriod.Value = value; }
	public decimal LevelUp { get => _levelUp.Value; set => _levelUp.Value = value; }
	public decimal LevelDown { get => _levelDown.Value; set => _levelDown.Value = value; }
	public decimal TakeProfitPercent { get => _takeProfitPercent.Value; set => _takeProfitPercent.Value = value; }
	public decimal StopLossPercent { get => _stopLossPercent.Value; set => _stopLossPercent.Value = value; }
	public DataType CandleType { get => _candleType.Value; set => _candleType.Value = value; }

	public RsiExpertStrategy()
	{
		_rsiPeriod = Param(nameof(RsiPeriod), 14)
			.SetGreaterThanZero()
			.SetDisplay("RSI Period", "Length of the RSI indicator", "Indicators");

		_levelUp = Param(nameof(LevelUp), 70m)
			.SetDisplay("RSI Overbought", "Upper RSI level triggering a short", "Indicators");

		_levelDown = Param(nameof(LevelDown), 30m)
			.SetDisplay("RSI Oversold", "Lower RSI level triggering a long", "Indicators");

		_takeProfitPercent = Param(nameof(TakeProfitPercent), 3m)
			.SetDisplay("Take Profit %", "Take profit percentage", "Risk");

		_stopLossPercent = Param(nameof(StopLossPercent), 2m)
			.SetDisplay("Stop Loss %", "Stop loss percentage", "Risk");

		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
			.SetDisplay("Candle Type", "Type of candles to use", "General");
	}

	/// <inheritdoc />
	public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
	{
		return [(Security, CandleType)];
	}

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();
		_prevRsi = 0m;
	}

	/// <inheritdoc />
	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);

		var rsi = new RelativeStrengthIndex { Length = RsiPeriod };

		var subscription = SubscribeCandles(CandleType);
		subscription
			.Bind(rsi, ProcessCandle)
			.Start();

		StartProtection(
			takeProfit: new Unit(TakeProfitPercent, UnitTypes.Percent),
			stopLoss: new Unit(StopLossPercent, UnitTypes.Percent),
			useMarketOrders: true);

		var area = CreateChartArea();
		if (area != null)
		{
			DrawCandles(area, subscription);
			DrawIndicator(area, rsi);
			DrawOwnTrades(area);
		}
	}

	private void ProcessCandle(ICandleMessage candle, decimal rsiValue)
	{
		if (candle.State != CandleStates.Finished)
			return;

		if (_prevRsi == 0m)
		{
			_prevRsi = rsiValue;
			return;
		}

		var crossUp = _prevRsi < LevelDown && rsiValue > LevelDown;
		var crossDown = _prevRsi > LevelUp && rsiValue < LevelUp;

		if (crossUp && Position <= 0)
		{
			if (Position < 0) BuyMarket();
			BuyMarket();
		}
		else if (crossDown && Position >= 0)
		{
			if (Position > 0) SellMarket();
			SellMarket();
		}

		_prevRsi = rsiValue;
	}
}